WO2020098014A1 - 显示面板的实际最佳公共电压的确定方法、装置及系统 - Google Patents

显示面板的实际最佳公共电压的确定方法、装置及系统 Download PDF

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WO2020098014A1
WO2020098014A1 PCT/CN2018/119181 CN2018119181W WO2020098014A1 WO 2020098014 A1 WO2020098014 A1 WO 2020098014A1 CN 2018119181 W CN2018119181 W CN 2018119181W WO 2020098014 A1 WO2020098014 A1 WO 2020098014A1
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common voltage
flicker
voltage
vcom
curve
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English (en)
French (fr)
Inventor
李嘉航
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HKC Co Ltd
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HKC Co Ltd
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Priority to US17/271,580 priority Critical patent/US11562709B2/en
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3696—Generation of voltages supplied to electrode drivers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G09G3/3655—Details of drivers for counter electrodes, e.g. common electrodes for pixel capacitors or supplementary storage capacitors
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes

Definitions

  • the present application relates to a method, device and system for determining the actual optimal common voltage of a display panel.
  • the mainstream method for adjusting the brightness stability of LCD (Liquid Crystal) Display by various manufacturers in the LCD (Liquid Crystal) display industry is to determine the best public voltage of the product at 127 gray scales to avoid flickering. occur.
  • the positive and negative polarity pixel voltages are inconsistent, and there is a difference in the brightness during the 30 Hz period.
  • the positive and negative polarity pixel voltages are almost the same, and there is no significant difference in the brightness during the 30 Hz period.
  • the method to find the best common voltage of 127 gray scales is mainly: for each LCD (Liquid Crystal), the first method is to manually change the common voltage one by one by manual measurement, and perform point-by-point search until it is found Minimum flicker value to determine the optimal value of the common voltage.
  • the second method is to replace the manual operation with automatic equipment and equipped with the best common voltage search method.
  • the automatic equipment search method uses a point-by-point voltage increase or decrease method to automatically search for the best common voltage.
  • a method, device, and system for determining the actual optimal common voltage of a display panel are provided.
  • a method for determining the actual optimal common voltage of a display panel includes a common electrode and a plurality of pixel electrodes opposite to the common electrode. A common voltage is applied to the common electrode, and a positive electrode corresponding to a gray scale value is applied to each pixel electrode.
  • the method of determining the actual best common voltage for the gray scale voltage and the negative gray scale voltage includes:
  • the common voltage at the intersection of the first Vcom-Flicker curve and the second Vcom-Flicker curve is determined, and the common voltage at the intersection is the actual best common voltage.
  • a device for determining the actual optimal common voltage of a display panel includes a common electrode and a plurality of pixel electrodes opposite to the common electrode. A common voltage is applied to the common electrode, and a positive electrode corresponding to the gray scale value is applied to each pixel electrode.
  • the device for determining the actual gray scale voltage and the negative gray scale voltage, the actual best common voltage includes:
  • a fitting voltage data acquisition circuit for acquiring a first common voltage and a second common voltage for fitting a curve, wherein the first common voltage is greater than the theoretical optimal common voltage, and the second common voltage is less than the theoretical optimal common voltage,
  • the theoretical best common voltage is the average voltage of positive gray scale voltage and negative gray scale voltage
  • a flicker value acquiring circuit configured to acquire a first flicker value corresponding to the first common voltage and a second flicker value corresponding to the second common voltage
  • a circuit for determining the relationship between the common voltage and the flicker value used to obtain a first Vcom-Flicker curve according to the first common voltage and the first flicker value, and a second Vcom-Flicker curve according to the second common voltage and the second flicker value;
  • the actual best common voltage determining circuit is used to determine the common voltage at the intersection of the first Vcom-Flicker curve and the second Vcom-Flicker curve, and the common voltage at the intersection point is the actual best common voltage.
  • a system for determining the actual best common voltage of a display panel includes: a common voltage measuring instrument, a color analyzer and a processor.
  • the common voltage measuring instrument is used to measure the common voltage of the display panel to be tested and send it to the processor for color analysis
  • the instrument is used to measure the flicker value corresponding to the common voltage
  • the processor is respectively connected to a voltage measuring instrument and a color analyzer.
  • the processor is used to perform the steps of the following method for determining the actual optimal common voltage of the display panel:
  • the common voltage at the intersection of the first Vcom-Flicker curve and the second Vcom-Flicker curve is determined, and the common voltage at the intersection is the actual best common voltage.
  • FIG. 1 is a schematic flowchart of a method for determining an actual optimal common voltage of a display panel in an embodiment
  • FIG. 2 is a schematic flowchart of a method for determining the actual optimal common voltage of a display panel in another embodiment
  • FIG. 3 is a schematic diagram of the relationship between the first Vcom-Flicker curve and the second Vcom-Flicker curve in an embodiment
  • FIG. 4 is a schematic diagram of the relationship between the first Vcom-Flicker curve and the second Vcom-Flicker curve in another embodiment
  • Vcom-Flicker curve is a schematic diagram of the relationship between the first Vcom-Flicker curve and the second Vcom-Flicker curve in still another embodiment
  • FIG. 6 is a schematic diagram of the relationship between the first Vcom-Flicker curve and the second Vcom-Flicker curve in yet another embodiment
  • FIG. 7 is a schematic diagram of the relationship between the first Vcom-Flicker curve and the second Vcom-Flicker curve in a specific embodiment
  • FIG. 8 is a schematic structural diagram of a device for determining an actual optimal common voltage of a display panel in an embodiment
  • FIG. 9 is a schematic structural diagram of a system for determining an actual optimal common voltage of a display panel in an embodiment
  • FIG. 10 is an internal structure diagram of a computer device in an embodiment.
  • an embodiment of the present invention provides a method for determining the actual optimal common voltage of a display panel.
  • the display panel includes a common electrode and a plurality of pixel electrodes disposed opposite to the common electrode.
  • a common voltage is applied to the common electrode, and each pixel electrode Apply the positive gray scale voltage and the negative gray scale voltage corresponding to the gray scale value, as shown in FIG. 1, the method for determining the actual best common voltage includes:
  • S20 Obtain a first common voltage and a second common voltage for curve fitting, where the first common voltage is greater than the theoretical optimal common voltage, the second common voltage is less than the theoretical optimal public voltage, and the theoretical optimal public voltage is the positive electrode The average voltage of the gray scale voltage and the negative gray scale voltage.
  • S60 Obtain a first Vcom-Flicker curve according to the first common voltage and the first flicker value, and obtain a second Vcom-Flicker curve according to the second common voltage and the second flicker value.
  • S80 Determine the common voltage at the intersection of the first Vcom-Flicker curve and the second Vcom-Flicker curve.
  • the common voltage at the intersection is the actual best common voltage.
  • the inventors measured and integrated a large amount of experimental data and found that there is a polynomial fitting rule between the common voltage of the display panel and its corresponding flicker value, so the common voltage of the display panel to be measured and its corresponding
  • the fitting polynomial of the flicker value can grasp the change of the flicker value of the display panel to be measured with the common voltage, so that the actual best common voltage can be quickly determined.
  • the actual best common voltage is the common voltage corresponding to the minimum flicker value. Taking the actual best common voltage as the axis of symmetry, the direction of the common voltage is gradually reduced to the left and the corresponding flicker value will gradually increase.
  • the actual value The best common voltage is the axis of symmetry, and the direction of increasing the common voltage gradually to the right is adjusted, and the flicker value corresponding to the common voltage will gradually increase.
  • the left side of the actual optimal common voltage in this article refers to the side of the part on the common voltage axis that is less than or equal to the actual optimal common voltage.
  • the right side of the actual optimal common voltage refers to the side of the part of the common voltage axis that is greater than or equal to the actual best common voltage.
  • the flicker value is used to reflect the value of the flicker frequency of the screen when the display panel is working, and can be directly measured by the color analyzer.
  • the theoretical optimal common voltage refers to the average value of the positive gray scale voltage and the negative gray scale voltage of the pixel electrode loaded on the same sub-pixel at different times.
  • the first Vcom-Flicker curve is used to reflect the relationship between the common voltage on the right side of the actual optimal common voltage (larger than the actual optimal common voltage) and its corresponding flicker value.
  • the second Vcom-Flicker curve is used to reflect the relationship between the common voltage on the left side of the actual optimal common voltage (less than the actual optimal common voltage) and its corresponding flicker value.
  • the first common voltage data greater than or equal to the theoretical optimal common voltage is obtained, and then the first flicker value corresponding to the first common voltage is obtained, and the first common voltage is summed
  • the first flicker value is fitted to the corresponding data point on the common voltage-flicker value coordinate system to obtain a first Vcom-Flicker curve that can reflect the relationship between the first common voltage and the first flicker value to determine the actual best common voltage.
  • the second Vcom-Flicker curve is the curves on the right and the left on the axis of the actual optimal common voltage, respectively.
  • Both curves pass through the points corresponding to the actual optimal common voltage, so determine
  • the intersection of the first Vcom-Flicker curve and the second Vcom-Flicker curve has the smallest flicker value at the intersection, and the common voltage at the intersection is the actual best common voltage.
  • the first Vcom-Flicker curve and the second Vcom-Flicker curve may be a first-order fitting polynomial function or a second-order fitting polynomial function, or the like.
  • the method for determining the actual optimal common voltage of the display panel selects a limited number of common voltage values to determine the first Vcom-Flicker curve and the second Vcom- that can reflect the relationship between the common voltage and the flicker value
  • the Flicker curve determines the actual best common voltage according to the characteristics of the first Vcom-Flicker curve and the second Vcom-Flicker curve, which can quickly determine the actual best public voltage, save time, and improve the efficiency of determining the actual best public voltage.
  • the method provided by the embodiment of the present invention can quickly determine the actual best common voltage of the 127 gray scale display panel.
  • the difference between the theoretical optimal common voltage and the second common voltage used to fit the curve is not less than 1V.
  • the inventor discovered through a lot of data that, like a 127 gray scale display panel, the difference between the actual best common voltage and the theoretical best common voltage does not exceed 1V, so when selecting the second common voltage, in order to ensure the second
  • the common voltage is the common voltage value on the left side of the actual best common voltage, which improves the accuracy of the second Vcom-Flicker curve fitting.
  • the obtained second common voltage is at least 1V less than the theoretical best common voltage to improve the actual best The accuracy of the determination of the common voltage.
  • the method for determining the actual optimal common voltage of the display panel further includes the steps of:
  • the gamma control circuit is a circuit for correcting the drive signal of the display panel in the liquid crystal display.
  • x 1 is a public voltage greater than the theoretical optimal public voltage
  • y right is the flicker value corresponding to x 1
  • a 1 and b 1 are coefficients
  • c 1 is a constant term
  • x 1 is a common voltage greater than the theoretical optimal common voltage
  • y right is the flicker value corresponding to x 1
  • k 1 is a coefficient
  • b 2 is a constant term.
  • x 2 is a public voltage less than the theoretical optimal public voltage
  • y left is the flicker value corresponding to x 2
  • a 2 and b 3 are coefficients
  • c 2 is a constant term
  • x2 is a public voltage less than the theoretical optimal public voltage
  • yleft is the flicker value corresponding to x2
  • k2 and b4 are parameters.
  • obtain at least three first common voltages and their corresponding first flicker values to determine the first Vcom-Flicker curve corresponding to a1, b1, and c1.
  • obtain At least three second common voltages and their corresponding second flicker values can determine the second Vcom-Flicker curve corresponding to a2, b3, c2, and then solve the intersection point of the two quadratic curves, the common voltage at the intersection point, It is the actual best common voltage.
  • the method for determining the actual optimal common voltage of the display panel provided by the embodiment of the present invention can determine the actual optimal common voltage by selecting six common voltage values, which is fast and effective.
  • the method for determining the actual optimal common voltage of the display panel provided by the embodiment of the present invention can determine the actual optimal common voltage by acquiring four common voltage values, which is fast and effective.
  • Obtain at least two first common voltages and their corresponding first flicker values you can determine the first Vcom-Flicker curve corresponding to k1 and b2, similarly, obtain at least two second common voltages and their corresponding second
  • the flicker value can determine the second Vcom-Flicker curve corresponding to k2 and b4, and then solve the intersection point of the two primary curves.
  • the common voltage at the intersection point is the actual best common voltage.
  • the method for determining the actual optimal common voltage of the display panel provided by the embodiment of the present invention can determine the actual optimal common voltage by selecting four common voltage values, which is fast and effective.
  • the second common voltage of 1V and its corresponding second flicker value can determine the first Vcom-Flicker curve and the second Vcom-Flicker curve corresponding to k, b2 and b4, and then determine the actual most Good common voltage.
  • the first Vcom-Flicker curve can be determined by obtaining at least two first common voltages and their corresponding first flicker values, and by obtaining at least three second common voltages and their corresponding second flicker values, Determine the second Vcom-Flicker curve, and then determine the actual best common voltage by solving the intersection of the two curves.
  • the first Vcom-Flicker curve can be determined by obtaining at least three first common voltages and their corresponding first flicker values, and by obtaining at least two second common voltages and their corresponding second flicker values Second Vcom-Flicker curve, and then determine the actual best common voltage by solving the intersection of the two curves.
  • steps in the flowcharts of FIGS. 1-2 are displayed in order according to the arrows, the steps are not necessarily executed in the order indicated by the arrows. Unless clearly stated in this article, the execution of these steps is not strictly limited in order, and these steps can be executed in other orders. Moreover, at least some of the steps in FIGS. 1-2 may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but may be executed at different times. These sub-steps or stages The execution order of is not necessarily sequential, but may be executed in turn or alternately with at least a part of other steps or sub-steps or stages of other steps.
  • Another aspect of the embodiments of the present invention also provides a device for determining the actual optimal common voltage of a display panel.
  • the display panel includes a common electrode and a plurality of pixel electrodes opposite to the common electrode.
  • a common voltage is applied to the common electrode.
  • the positive gray scale voltage and the negative gray scale voltage corresponding to the gray scale value are applied to the electrodes.
  • the device for determining the actual optimal common voltage includes:
  • the fitting voltage data acquisition circuit 10 is used to acquire a first common voltage and a second common voltage for fitting a curve, wherein the first common voltage is greater than the theoretical optimal common voltage, and the second common voltage is smaller than the theoretical optimal common voltage ,
  • the theoretical optimal common voltage is the average voltage of the positive gray scale voltage and the negative gray scale voltage;
  • the flicker value acquisition circuit 20 is configured to acquire a first flicker value corresponding to the first common voltage and a second flicker value corresponding to the second common voltage;
  • the common voltage and flicker value relationship determination circuit 30 is configured to obtain a first Vcom-Flicker curve according to the first common voltage and the first flicker value, and obtain a second Vcom-Flicker curve according to the second common voltage and the second flicker value;
  • the actual optimal common voltage determining circuit 40 is used to determine the common voltage at the intersection of the first Vcom-Flicker curve and the second Vcom-Flicker curve, and the common voltage at the intersection point is the actual optimal common voltage.
  • the fitting voltage data acquisition circuit 10 acquires the first common voltage and the second common voltage used for fitting the curve and sends it to the common voltage and flicker value relationship determination circuit 30, and the flicker value acquisition circuit 20 acquires the correspondence of the first common voltage And the second flicker value corresponding to the first flicker value and the second common voltage are sent to the common voltage and flicker value relationship determination circuit 30, and then the common voltage and flicker value relationship determination circuit 30 is obtained according to the first common voltage and the first flicker value
  • the first Vcom-Flicker curve, the second Vcom-Flicker curve is obtained according to the second common voltage and the second flicker value, and the actual optimal common voltage determination circuit 40 determines the intersection point according to the first Vcom-Flicker curve and the second Vcom-Flicker curve The actual best common voltage.
  • the first Vcom-Flicker curve is:
  • x1 is a public voltage greater than the theoretical optimal public voltage
  • yright is the flicker value corresponding to x1
  • a1, b1 are coefficients
  • c1 is a constant term.
  • the first Vcom-Flicker curve is:
  • x1 is a public voltage greater than the theoretical optimal public voltage
  • yright is the flicker value corresponding to x1
  • k1 is a coefficient
  • b2 is a constant term.
  • Each module in the device for determining the actual optimal common voltage of the above display panel may be implemented in whole or in part by software, hardware, and a combination thereof.
  • the above modules may be embedded in the hardware or independent of the processor in the computer device, or may be stored in the memory in the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.
  • a system for determining the actual best common voltage of a display panel includes: a common voltage measuring instrument 1, a color analyzer 2 and a processor 3, and the common voltage measuring instrument 1 is used to measure the display panel to be tested The common voltage is sent to the processor 3, the color analyzer 2 is used to measure the flicker value corresponding to the common voltage, the processor 3 is connected to the voltage measuring instrument and the color analyzer 2 respectively, and the processor 3 is used to perform the actual Steps to determine the best common voltage method.
  • the common voltage measuring instrument 1 measures the first common voltage and the second common voltage applied to the common electrode and outputs data to the processor 3, and at the same time, the color analyzer 2 collects the applied common electrode
  • the first flicker value corresponding to the first common voltage and the second flicker value corresponding to the second common voltage are output to the processor 3, and the processor 3 determines the first Vcom-Flicker according to the acquired first common voltage and the first flicker value Curve, the second Vcom-Flicker curve is determined according to the obtained second common voltage and the second flicker value, and then the intersection of the first Vcom-Flicker curve and the second Vcom-Flicker curve is solved to determine the actual best common voltage.
  • the system for determining the actual optimal common voltage of the display panel provided by the embodiment of the present invention can quickly determine the actual optimal common voltage.
  • the color analyzer 2 is a CA310 model color analyzer 2.
  • CA310 is used to measure the flicker value corresponding to the first common voltage and the second common voltage, and output the first flicker value and the second flicker value to the processor 3 to provide a data basis for the processor 3 to determine the actual best common voltage.
  • a computer device is provided.
  • the computer device may be a terminal, and an internal structure diagram thereof may be as shown in FIG.
  • the computer equipment includes a processor, a memory, a network interface, a display screen, and an input device connected through a system bus.
  • the processor of the computer device is used to provide computing and control capabilities.
  • the memory of the computer device includes a non-volatile storage medium and an internal memory.
  • the non-volatile storage medium stores an operating system and computer programs.
  • the internal memory provides an environment for the operating system and computer programs in the non-volatile storage medium.
  • the network interface of the computer device is used to communicate with external terminals through a network connection.
  • the computer program is executed by the processor to implement a method for determining the actual optimal common voltage of the display panel.
  • the display screen of the computer device may be a liquid crystal display screen or an electronic ink display screen
  • the input device of the computer device may be a touch layer covered on the display screen, or may be a button, a trackball or a touchpad provided on the computer device housing , Can also be an external keyboard, touchpad or mouse.
  • FIG. 10 is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer equipment to which the solution of the present application is applied.
  • the specific computer equipment may It includes more or fewer components than shown in the figure, or some components are combined, or have a different component arrangement.
  • a computer device includes a memory and a processor.
  • the memory stores a computer program.
  • the processor executes the computer program, the method steps shown in FIG. 1 are implemented:
  • S20 Obtain a first common voltage and a second common voltage for curve fitting, where the first common voltage is greater than the theoretical optimal common voltage, the second common voltage is less than the theoretical optimal public voltage, and the theoretical optimal public voltage is the positive electrode The average voltage of the gray scale voltage and the negative gray scale voltage;
  • S60 Obtain a first Vcom-Flicker curve according to the first common voltage and the first flicker value, and obtain a second Vcom-Flicker curve according to the second common voltage and the second flicker value;
  • S80 Determine the common voltage at the intersection of the first Vcom-Flicker curve and the second Vcom-Flicker curve.
  • the common voltage at the intersection is the actual best common voltage.
  • the processor on it executes the program stored in the memory when it is working, so that the actual optimal common voltage can be quickly determined.
  • S20 Obtain a first common voltage and a second common voltage for curve fitting, where the first common voltage is greater than the theoretical optimal common voltage, the second common voltage is less than the theoretical optimal public voltage, and the theoretical optimal public voltage is the positive electrode The average voltage of the gray scale voltage and the negative gray scale voltage;
  • S60 Obtain a first Vcom-Flicker curve according to the first common voltage and the first flicker value, and obtain a second Vcom-Flicker curve according to the second common voltage and the second flicker value;
  • S80 Determine the common voltage at the intersection of the first Vcom-Flicker curve and the second Vcom-Flicker curve.
  • the common voltage at the intersection is the actual best common voltage.
  • Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory.
  • Volatile memory can include random access memory (RAM) or external cache memory.
  • RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous chain (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.
  • SRAM static RAM
  • DRAM dynamic RAM
  • SDRAM synchronous DRAM
  • DDRSDRAM double data rate SDRAM
  • ESDRAM enhanced SDRAM
  • SLDRAM synchronous chain (Synchlink) DRAM
  • SLDRAM synchronous chain (Synchlink) DRAM
  • Rambus direct RAM
  • DRAM direct memory bus dynamic RAM
  • RDRAM memory bus dynamic RAM

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Abstract

一种显示面板的实际最佳公共电压的确定方法、装置及系统。显示面板的实际最佳公共电压的确定方法包括：获取用于拟合曲线的第一公共电压和第二公共电压；获取第一公共电压对应的第一闪烁值和第二公共电压对应的第二闪烁值；根据第一公共电压和第一闪烁值获得第一Vcom-Flicker曲线，根据第二公共电压和第二闪烁值获得第二Vcom-Flicker曲线；确定第一Vcom-Flicker曲线和第二Vcom-Flicker曲线的交点处的公共电压，交点处的公共电压为实际最佳公共电压。

Description

显示面板的实际最佳公共电压的确定方法、装置及系统
本申请要求于2018年11月13日提交中国专利局，申请号为201811344810.3，申请名称为“显示面板的实际最佳公共电压的确定方法、装置及系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及一种显示面板的实际最佳公共电压的确定方法、装置及系统。
背景技术
这里的陈述仅提供与本申请有关的背景信息，而不必然地构成现有技术。
随着显示器的应用日益广泛，现今社会对显示器的需求日益广泛，包含手机，监视器，笔记本电脑，平板电脑，电视，甚至一些智能手表的应用，无不使用LCD(Liquid Crystal Display，液晶显示器)或是OLED(Organic Light-Emitting Diode，有机发光二极管或有机电激光显示)等作为其显示元件。我们都知道，对于任何一台显示器而言，显示效果的稳定性是至关重要的。闪烁是严重影响显示品质的一种现象，这种由正负极性的像素电压非完全对称带来亮度上的周期性高低变化，不仅会影响人们的观影感受，同时会降低产品的使用寿命。
目前LCD(Liquid Crystal Display，液晶显示器)显示行业各生产商调整LCD(Liquid Crystal Display，液晶显示器)显示亮度稳定性的主流方法是确定产品在127灰阶下的最佳公共电压，从而避免闪烁的发生。如图一所示，公共电压调整前，正负极性像素电压不一致，30Hz的周期内亮度有差异，公共电压调整后，正负极性像素电压几乎一致，30Hz的周期内亮度无明显差异。
目前查找127灰阶的最佳公共电压的办法主要是：对于每一块LCD(Liquid Crystal Display，液晶显示器)，第一种方法是用人工测量的办法逐一改变公共电压，进行逐点寻找，直到找到最小闪烁值，来确定公共电压的最佳值。第二种方法是用自动化设备并搭载最佳公共电压搜寻方法来代替人工操作，一般而言自动化设备搜寻方法使用逐点电压渐增或渐减方式来自动搜寻最佳公共电压。
但是发明人意识到，示例性技术中提供的检测方式依赖人工进行逐点测量的方法费时 费力，效率低；示例性技术中采用逐点电压搜寻法进行自动化测量的方式，需花费许多时间进行最佳电压的搜索。
申请内容
为解决测试效率低的问题，根据本申请公开的各种实施例，提供一种显示面板的实际最佳公共电压的确定方法、装置及系统。
一种显示面板的实际最佳公共电压的确定方法，显示面板包括公共电极以及与公共电极相对设置的多个像素电极，公共电极上施加公共电压，各像素电极上施加与灰阶值对应的正极性灰阶电压和负极性灰阶电压，实际最佳公共电压的确定方法包括：
获取用于拟合曲线的第一公共电压和第二公共电压，其中，第一公共电压不小于理论最佳公共电压，第二公共电压小于理论最佳公共电压，理论最佳公共电压为正极性灰阶电压和负极性灰阶电压的平均电压；
获取第一公共电压对应的第一闪烁值和第二公共电压对应的第二闪烁值；
根据第一公共电压和第一闪烁值获得第一Vcom-Flicker曲线，根据第二公共电压和第二闪烁值获得第二Vcom-Flicker曲线；
确定第一Vcom-Flicker曲线和第二Vcom-Flicker曲线的交点处的公共电压，交点处的公共电压为实际最佳公共电压。
一种显示面板的实际最佳公共电压的确定装置，显示面板包括公共电极以及与公共电极相对设置的多个像素电极，公共电极上施加公共电压，各像素电极上施加与灰阶值对应的正极性灰阶电压和负极性灰阶电压，实际最佳公共电压的确定装置包括：
拟合电压数据获取电路，用于获取用于拟合曲线的第一公共电压和第二公共电压，其中，第一公共电压大于理论最佳公共电压，第二公共电压小于理论最佳公共电压，理论最佳公共电压为正极性灰阶电压和负极性灰阶电压的平均电压；
闪烁值获取电路，用于获取第一公共电压对应的第一闪烁值和第二公共电压对应的第二闪烁值；
公共电压和闪烁值关系确定电路，用于根据第一公共电压和第一闪烁值获得第一Vcom-Flicker曲线，根据第二公共电压和第二闪烁值获得第二Vcom-Flicker曲线；
实际最佳公共电压确定电路，用于确定第一Vcom-Flicker曲线和第二Vcom-Flicker曲线的交点处的公共电压，交点处的公共电压为实际最佳公共电压。
一种显示面板的实际最佳公共电压的确定系统，包括：公共电压测量仪器、色彩分析仪和处理器，公共电压测量仪器用于测量待测显示面板的公共电压并发送至处理器，色彩分析仪用于测量公共电压对应的闪烁值；
处理器分别与电压测量仪器和色彩分析仪连接，处理器用于执行以下显示面板的实际最佳公共电压的确定方法的步骤：
获取用于拟合曲线的第一公共电压和第二公共电压，其中，第一公共电压不小于理论最佳公共电压，第二公共电压小于理论最佳公共电压，理论最佳公共电压为正极性灰阶电压和负极性灰阶电压的平均电压；
获取第一公共电压对应的第一闪烁值和第二公共电压对应的第二闪烁值；
根据第一公共电压和第一闪烁值获得第一Vcom-Flicker曲线，根据第二公共电压和第二闪烁值获得第二Vcom-Flicker曲线；
确定第一Vcom-Flicker曲线和第二Vcom-Flicker曲线的交点处的公共电压，交点处的公共电压为实际最佳公共电压。
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其它特征和优点将从说明书、附图以及权利要求书变得明显。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1为一个实施例中显示面板的实际最佳公共电压的确定方法的流程示意图；
图2为另一个实施例中显示面板的实际最佳公共电压的确定方法的流程示意图；
图3为一个实施例中第一Vcom-Flicker曲线和第二Vcom-Flicker曲线的关系示意图；
图4为另一个实施例中第一Vcom-Flicker曲线和第二Vcom-Flicker曲线的关系示意图；
图5为再一个实施例中第一Vcom-Flicker曲线和第二Vcom-Flicker曲线的关系示意图；
图6为又一个实施例中第一Vcom-Flicker曲线和第二Vcom-Flicker曲线的关系示意图；
图7为一个具体实施例中第一Vcom-Flicker曲线和第二Vcom-Flicker曲线的关系示意图；
图8为一个实施例中显示面板的实际最佳公共电压的确定装置的结构示意图；
图9为一个实施例中显示面板的实际最佳公共电压的确定系统的结构示意图；
图10为一个实施例中计算机设备的内部结构图。
具体实施方式
为了使本申请的技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
需要说明的是，当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件并与之结合为一体，或者可能同时存在居中元件。本文所使用的术语“安装”、“一端”、“另一端”以及类似的表述只是为了说明的目的。
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
一方面，本发明实施例提供了一种显示面板的实际最佳公共电压的确定方法，显示面板包括公共电极以及与公共电极相对设置的多个像素电极，公共电极上施加公共电压，各像素电极上施加与灰阶值对应的正极性灰阶电压和负极性灰阶电压，如图1所示，实际最佳公共电压的确定方法包括：
S20：获取用于拟合曲线的第一公共电压和第二公共电压，其中，第一公共电压大于理论最佳公共电压，第二公共电压小于理论最佳公共电压，理论最佳公共电压为正极性灰 阶电压和负极性灰阶电压的平均电压。
S40：获取第一公共电压对应的第一闪烁值和第二公共电压对应的第二闪烁值。
S60：根据第一公共电压和第一闪烁值获得第一Vcom-Flicker曲线，根据第二公共电压和第二闪烁值获得第二Vcom-Flicker曲线。
S80：确定第一Vcom-Flicker曲线和第二Vcom-Flicker曲线的交点处的公共电压，交点处的公共电压为实际最佳公共电压。
发明人在研发实验过程中，通过测量、整合大量实验数据，发现显示面板的公共电压和其对应的闪烁值之间存在多项式拟合规律，所以确定待测的显示面板的公共电压和其对应的闪烁值的拟合多项式，可以掌握待测的显示面板的闪烁值随公共电压的变化情况，从而可以快速确定实际最佳公共电压。实际最佳公共电压即为最小闪烁值对应的公共电压，以实际最佳公共电压为对称轴，向左逐渐减小公共电压的方向调整，其对应的闪烁值会逐渐增加，同理，以实际最佳公共电压为对称轴，向右逐渐增大公共电压的方向调整，公共电压对应的闪烁值也会逐渐增加。需要说明的是，本文中所述实际最佳公共电压的左侧是指公共电压轴上，小于等于实际最佳公共电压的部分所在的侧，同理，所述实际最佳公共电压的右侧是指公共电压轴上，大于等于实际最佳公共电压的部分所在的侧。
闪烁(Flicker)值用于反映显示面板工作时屏幕的闪烁频率的值，可以由色彩分析仪直接测量得到。理论最佳公共电压是指不同时刻加载在同一子像素的像素电极的正极性灰阶电压和负极性灰阶电压的平均值。第一Vcom-Flicker曲线用于反映实际最佳公共电压右侧部分(大于实际最佳公共电压部分)的公共电压与其对应闪烁值之间的关系。第二Vcom-Flicker曲线用于反映实际最佳公共电压左侧部分(小于实际最佳公共电压)的公共电压与其对应闪烁值之间的关系。
由于实际最佳公共电压总是小于理论最佳公共电压，因此获取大于等于理论最佳公共电压的第一公共电压数据，然后获取第一公共电压对应的第一闪烁值，将第一公共电压和第一闪烁值在公共电压-闪烁值坐标系上对应的数据点进行拟合，得到能够反映第一公共电压和第一闪烁值关系的第一Vcom-Flicker曲线，以确定实际最佳公共电压右侧的公共电压和Flicker之间的对应关系。同理，实际最佳公共电压左侧的公共电压与闪烁值之间也存在多项式拟合规律，选取小于理论最佳公共电压的第二电压数据，然后获取第二公共电 压对应的第二闪烁值，将第二公共电压和第二闪烁值在公共电压-闪烁值坐标系上对应的数据点进行拟合，得到能够反映实际最佳公共电压左侧的公共电压和闪烁值之间的对应关系的第二Vcom-Flicker曲线。第一Vcom-Flicker曲线和第二Vcom-Flicker曲线分别是以实际最佳公共电压为轴的右侧的曲线和左侧的曲线，两个曲线均经过实际最佳公共电压对应的点，所以确定第一Vcom-Flicker曲线和第二Vcom-Flicker曲线的交点，交点处的闪烁值最小，交点处的公共电压即为实际最佳公共电压。第一Vcom-Flicker曲线和第二Vcom-Flicker曲线可以是一次拟合多项式函数或二次拟合多项式函数等。
本发明实施例提供的显示面板的实际最佳公共电压的确定方法，选取有限个数的公共电压值，确定可以反映公共电压和闪烁值之间关系的第一Vcom-Flicker曲线和第二Vcom-Flicker曲线，根据第一Vcom-Flicker曲线和第二Vcom-Flicker曲线的特性确定实际最佳公共电压，可以快速确定实际最佳公共电压，节省时间，提高实际最佳公共电压确定的效率。本发明实施例提供的方法可以快速确定127灰阶的显示面板的实际最佳公共电压。
在其中一个实施例中，理论最佳公共电压与用于拟合曲线的第二公共电压之间的差值不小于1V。
发明人在实验过程中，通过研究大量数据发现，像127灰阶的显示面板，实际最佳公共电压与理论最佳公共电压相差不超过1V，因此在选取第二公共电压时，为保证第二公共电压为实际最佳公共电压左侧的公共电压值，提高第二Vcom-Flicker曲线拟合的准确度，获取的第二公共电压至少要比理论最佳公共电压小1V，以提高实际最佳公共电压确定的准确度。
在其中一个实施例中，如图2所示，显示面板的实际最佳公共电压的确定方法，还包括步骤：
将实际最佳公共电压烧录在显示面板的gamma控制电路中。
在确定实际最佳公共电压后，将得到的实际最佳公共电压烧录在显示面板的gamma控制电路中，为显示面板提供合适的公共电压，避免显示面板工作时发生闪屏问题。gamma控制电路是液晶显示器中用于校正显示面板的驱动信号的电路。
对第一公共电压和第一闪烁值进行拟合时，得到的第一Vcom-Flicker曲线为：
y right＝a 1(x 1-b 1) 2+c 1
其中，x 1为大于理论最佳公共电压的公共电压，y right为x 1对应的闪烁值，a 1、b 1为系数，c 1是常数项；
或者第一Vcom-Flicker曲线为：
y right＝k 1x 1+b 2
其中，x 1为大于理论最佳公共电压的公共电压，y right为x 1对应的闪烁值，k 1为系数，b 2为常数项。
对第二公共电压和第二闪烁值进行拟合时，得到的第二Vcom-Flicker曲线为：
y left＝a 2(x 2-b 3) 2+c 2
其中，x 2为小于理论最佳公共电压的公共电压，y left为x 2对应的闪烁值，a 2、b 3为系数，c 2为常数项；
或者第二Vcom-Flicker曲线为：
y left＝k 2x 2+b 4
其中，x2为小于理论最佳公共电压的公共电压，yleft为x2对应的闪烁值，k2、b4为参数。
拟合得到的结果不同，影响到后续对第一Vcom-Flicker曲线和第二Vcom-Flicker曲线的交点的确定过程。
例如，当拟合得到的第一Vcom-Flicker曲线为y right＝a 1(x 1-b 1) 2+c 1，第二Vcom-Flicker曲线为y left＝a 2(x 2-b 3) 2+c 2时，如图3所示，获取至少三个第一公共电压和其对应的第一闪烁值，即可确定a1、b1、c1对应的第一Vcom-Flicker曲线，同理，获取至少三个第二公共电压和其对应的第二闪烁值，即可确定a2、b3、c2对应的第二Vcom-Flicker曲线，然后再求解两个二次曲线的交点，交点处的公共电压，即为实际最佳公共电压。本发明实施例提供的显示面板的实际最佳公共电压的确定方法，通过选取六个公共电压值，即可确定实际最佳公共电压，快速有效。
发明人通过大量的实验测量数据发现，拟合的第一Vcom-Flicker曲线y right＝a 1(x 1-b 1) 2+c 1和第二Vcom-Flicker曲线y left＝a 2(x 2-b 3) 2+c 2是关于最小闪烁 值对应的公共电压对称的二次曲线，即a1＝a2＝a，c1＝c3＝c，所以，如图4所示，可以选取三个第一公共电压和其对应的第一闪烁值，以及一个小于理论最佳公共电压1V的第二公共电压和其对应的第二闪烁值，即可确定a、b1、b3、c对应的第一Vcom-Flicker曲线和第二Vcom-Flicker曲线，然后确定实际最佳公共电压，确定实际最佳公共电压的过程可以是通过求解第一Vcom-Flicker曲线和第二Vcom-Flicker曲线相交处对应的公共电压可确定为实际最佳公共电压，即求yleft＝yright，x1＝x2时的拟合数据点值，得到实际最佳公共电压。
另一方面，如图5所示，由于Vcom-Flicker曲线y right＝a 1(x 1-b 1) 2+c 1和第二Vcom-Flicker曲线y left＝a 2(x 2-b 3) 2+c 2是关于最小闪烁值对应的公共电压对称的二次曲线，所以确定实际最佳公共电压还可以是通过两条曲线的顶点处对应的b1、b3来确定，实际最佳公共电压
Figure PCTCN2018119181-appb-000001
本发明实施例提供的显示面板的实际最佳公共电压的确定方法，可以通过获取四个公共电压值即可确定实际最佳公共电压，快速有效。
另外，如图6所示，若当拟合得到的第一Vcom-Flicker曲线为y right＝k 1x 1+b 2，第二Vcom-Flicker曲线为y left＝k 2x 2+b 4时，获取至少两个第一公共电压和其对应的第一闪烁值，即可确定k1和b2对应的第一Vcom-Flicker曲线，同理，获取至少两个第二公共电压和其对应的第二闪烁值，即可确定k2和b4对应的第二Vcom-Flicker曲线，然后再求解两个一次曲线的交点，交点处的公共电压，即为实际最佳公共电压。本发明实施例提供的显示面板的实际最佳公共电压的确定方法，通过选取四个公共电压值，即可确定实际最佳公共电压，快速有效。
发明人通过大量的实验测量数据发现，如图7所示，拟合的第一Vcom-Flicker曲线y right＝k 1x 1+b 2和第二Vcom-Flicker曲线y left＝k 2x 2+b 4是关于最小闪烁值对应的公共电压对称的一次曲线，即k1＝-k2＝k，所以通过选取两个第一公共电压和其对应的第一闪烁值，以及一个小于理论最佳公共电压1V的第二公共电压和其对应的第二闪烁值，即可确定k、b2和b4对应的第一Vcom-Flicker曲线和第二Vcom-Flicker曲线，然后通过确定两个曲线的交点确定实际最佳公共电压。
此外，在拟合曲线时，得到的第一Vcom-Flicker曲线可以是y right＝k 1x 1+b 2，第二Vcom-Flicker曲线可以是y left＝a 2(x 2-b 3) 2+c 2，通过获取至少两个第一公共电压及其对 应的第一闪烁值，可以确定第一Vcom-Flicker曲线，通过获取至少三个第二公共电压及其对应的第二闪烁值，可以确定第二Vcom-Flicker曲线，然后通过求解两个曲线的交点，确定实际最佳公共电压。
同理，若拟合曲线时，得到的第一Vcom-Flicker曲线是y right＝a 1(x 1-b 1) 2+c 1，第二Vcom-Flicker曲线是y left＝k 2x 2+b 4，则可以通过获取至少三个第一公共电压及其对应的第一闪烁值，确定第一Vcom-Flicker曲线，通过获取至少两个第二公共电压及其对应的第二闪烁值，确定第二Vcom-Flicker曲线，然后通过求解两个曲线的交点，确定实际最佳公共电压。
应该理解的是，虽然图1-2的流程图中的各个步骤按照箭头的指示依次显示，但是这些步骤并不是必然按照箭头指示的顺序依次执行。除非本文中有明确的说明，这些步骤的执行并没有严格的顺序限制，这些步骤可以以其它的顺序执行。而且，图1-2中的至少一部分步骤可以包括多个子步骤或者多个阶段，这些子步骤或者阶段并不必然是在同一时刻执行完成，而是可以在不同的时刻执行，这些子步骤或者阶段的执行顺序也不必然是依次进行，而是可以与其它步骤或者其它步骤的子步骤或者阶段的至少一部分轮流或者交替地执行。
本发明实施例另一方面还提供了一种显示面板的实际最佳公共电压的确定装置，显示面板包括公共电极以及与公共电极相对设置的多个像素电极，公共电极上施加公共电压，各像素电极上施加与灰阶值对应的正极性灰阶电压和负极性灰阶电压，如图8所示，实际最佳公共电压的确定装置包括：
拟合电压数据获取电路10，用于获取用于拟合曲线的第一公共电压和第二公共电压，其中，第一公共电压大于理论最佳公共电压，第二公共电压小于理论最佳公共电压，理论最佳公共电压为正极性灰阶电压和负极性灰阶电压的平均电压；
闪烁值获取电路20，用于获取第一公共电压对应的第一闪烁值和第二公共电压对应的第二闪烁值；
公共电压和闪烁值关系确定电路30，用于根据第一公共电压和第一闪烁值获得第一Vcom-Flicker曲线，根据第二公共电压和第二闪烁值获得第二Vcom-Flicker曲线；
实际最佳公共电压确定电路40，用于确定第一Vcom-Flicker曲线和第二Vcom-Flicker 曲线的交点处的公共电压，交点处的公共电压为实际最佳公共电压。
第一Vcom-Flicker曲线等名词释义与上述实施例中相同，在此不做赘述。具体的，拟合电压数据获取电路10获取用于拟合曲线的第一公共电压和第二公共电压并发送到公共电压和闪烁值关系确定电路30，闪烁值获取电路20获取第一公共电压对应的第一闪烁值和第二公共电压对应的第二闪烁值并发送到公共电压和闪烁值关系确定电路30，然后公共电压和闪烁值关系确定电路30根据第一公共电压和第一闪烁值获得第一Vcom-Flicker曲线，根据第二公共电压和第二闪烁值获得第二Vcom-Flicker曲线，实际最佳公共电压确定电路40根据第一Vcom-Flicker曲线和第二Vcom-Flicker曲线确定交点处的实际最佳公共电压。
在其中一个实施例中，第一Vcom-Flicker曲线为：
y right＝a 1(x 1-b 1) 2+c 1
其中，x1为大于理论最佳公共电压的公共电压，yright为x1对应的闪烁值，a1、b1为系数，c1是常数项。
在其中一个实施例中，第一Vcom-Flicker曲线为：
y right＝k 1x 1+b 2
其中，x1为大于理论最佳公共电压的公共电压，yright为x1对应的闪烁值，k1为系数，b2为常数项。
关于显示面板的实际最佳公共电压的确定装置的具体限定可以参见上文中对于显示面板的实际最佳公共电压的确定方法的限定，在此不再赘述。上述显示面板的实际最佳公共电压的确定装置中的各个模块可全部或部分通过软件、硬件及其组合来实现。上述各模块可以硬件形式内嵌于或独立于计算机设备中的处理器中，也可以以软件形式存储于计算机设备中的存储器中，以便于处理器调用执行以上各个模块对应的操作。
一种显示面板的实际最佳公共电压的确定系统，如图9所示，包括：公共电压测量仪器1、色彩分析仪2和处理器3，公共电压测量仪器1用于测量待测显示面板的公共电压并发送至处理器3，色彩分析仪2用于测量公共电压对应的闪烁值，处理器3分别与电压测量仪器和色彩分析仪2连接，处理器3用于执行上述显示面板的实际最佳公共电压的确 定方法的步骤。
为了实现实际最佳公共电压的快速确定，公共电压测量仪器1测量施加到公共电极的第一公共电压和第二公共电压并输出数据至处理器3，同时，色彩分析仪2采集施加到公共电极的第一公共电压对应的第一闪烁值和第二公共电压对应的第二闪烁值并输出至处理器3，处理器3根据获取的第一公共电压和第一闪烁值确定第一Vcom-Flicker曲线，根据获取的第二公共电压和第二闪烁值确定第二Vcom-Flicker曲线，然后求解第一Vcom-Flicker曲线和第二Vcom-Flicker曲线的交点，确定实际最佳公共电压。本发明实施例提供的显示面板的实际最佳公共电压的确定系统，可以快速确定实际最佳公共电压。
在其中一个实施例中，色彩分析仪2为CA310型号的色彩分析仪2。利用CA310量测第一公共电压和第二公共电压对应的闪烁值，并输出第一闪烁值和第二闪烁值给处理器3，为处理器3确定实际最佳公共电压提供数据依据。
在一个实施例中，提供了一种计算机设备，该计算机设备可以是终端，其内部结构图可以如图10所示。该计算机设备包括通过系统总线连接的处理器、存储器、网络接口、显示屏和输入装置。该计算机设备的处理器用于提供计算和控制能力。该计算机设备的存储器包括非易失性存储介质、内存储器。该非易失性存储介质存储有操作系统和计算机程序。该内存储器为非易失性存储介质中的操作系统和计算机程序的运行提供环境。该计算机设备的网络接口用于与外部的终端通过网络连接通信。该计算机程序被处理器执行时以实现一种显示面板的实际最佳公共电压的确定方法。该计算机设备的显示屏可以是液晶显示屏或者电子墨水显示屏，该计算机设备的输入装置可以是显示屏上覆盖的触摸层，也可以是计算机设备外壳上设置的按键、轨迹球或触控板，还可以是外接的键盘、触控板或鼠标等。
本领域技术人员可以理解，图10中示出的结构，仅仅是与本申请方案相关的部分结构的框图，并不构成对本申请方案所应用于其上的计算机设备的限定，具体的计算机设备可以包括比图中所示更多或更少的部件，或者组合某些部件，或者具有不同的部件布置。
一种计算机设备，包括存储器和处理器，存储器存储有计算机程序，处理器执行计算机程序时实现如图1所示的方法步骤：
S20：获取用于拟合曲线的第一公共电压和第二公共电压，其中，第一公共电压大于 理论最佳公共电压，第二公共电压小于理论最佳公共电压，理论最佳公共电压为正极性灰阶电压和负极性灰阶电压的平均电压；
S40：获取第一公共电压对应的第一闪烁值和第二公共电压对应的第二闪烁值；
S60：根据第一公共电压和第一闪烁值获得第一Vcom-Flicker曲线，根据第二公共电压和第二闪烁值获得第二Vcom-Flicker曲线；
S80：确定第一Vcom-Flicker曲线和第二Vcom-Flicker曲线的交点处的公共电压，交点处的公共电压为实际最佳公共电压。
本发明实施例提供的计算机设备，其上的处理器在工作时，执行存储器上存储的程序，从而可以快速确定实际最佳公共电压。
一种计算机可读存储介质，其上存储有计算机程序，计算机程序被处理器执行时实现如图1所示的方法步骤：
S20：获取用于拟合曲线的第一公共电压和第二公共电压，其中，第一公共电压大于理论最佳公共电压，第二公共电压小于理论最佳公共电压，理论最佳公共电压为正极性灰阶电压和负极性灰阶电压的平均电压；
S40：获取第一公共电压对应的第一闪烁值和第二公共电压对应的第二闪烁值；
S60：根据第一公共电压和第一闪烁值获得第一Vcom-Flicker曲线，根据第二公共电压和第二闪烁值获得第二Vcom-Flicker曲线；
S80：确定第一Vcom-Flicker曲线和第二Vcom-Flicker曲线的交点处的公共电压，交点处的公共电压为实际最佳公共电压。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述的计算机程序可存储于一非易失性计算机可读取存储介质中，该计算机程序在执行时，可包括如上述各方法的实施例的流程。其中，本申请所提供的各实施例中所使用的对存储器、存储、数据库或其它介质的任何引用，均可包括非易失性和/或易失性存储器。非易失性存储器可包括只读存储器(ROM)、可编程ROM(PROM)、电可编程ROM(EPROM)、电可擦除可编程ROM(EEPROM)或闪存。易失性存储器可包括随机存取存储器(RAM)或者外部高速缓冲存储器。作为说明而非局限，RAM以多种形式可得，诸如静态RAM(SRAM)、动态RAM(DRAM)、同步DRAM (SDRAM)、双数据率SDRAM(DDRSDRAM)、增强型SDRAM(ESDRAM)、同步链路(Synchlink)DRAM(SLDRAM)、存储器总线(Rambus)直接RAM(RDRAM)、直接存储器总线动态RAM(DRDRAM)、以及存储器总线动态RAM(RDRAM)等。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (20)

  1. 一种显示面板的实际最佳公共电压的确定方法，显示面板包括公共电极以及与所述公共电极相对设置的多个像素电极，所述公共电极上施加公共电压，各所述像素电极上施加与灰阶值对应的正极性灰阶电压和负极性灰阶电压，所述实际最佳公共电压的确定方法包括：
    获取用于拟合曲线的第一公共电压和第二公共电压，其中，所述第一公共电压不小于理论最佳公共电压，所述第二公共电压小于所述理论最佳公共电压，所述理论最佳公共电压为所述正极性灰阶电压和所述负极性灰阶电压的平均电压；
    获取所述第一公共电压对应的第一闪烁值和所述第二公共电压对应的第二闪烁值；
    根据所述第一公共电压和所述第一闪烁值获得第一Vcom-Flicker曲线，根据所述第二公共电压和所述第二闪烁值获得第二Vcom-Flicker曲线；
    确定所述第一Vcom-Flicker曲线和所述第二Vcom-Flicker曲线的交点处的公共电压，所述交点处的公共电压为实际最佳公共电压。
  2. 根据权利要求1所述的显示面板的实际最佳公共电压的确定方法，其中，所述第一Vcom-Flicker曲线为：
    y right＝a 1(x 1-b 1) 2+c 1
    其中，x1为所述大于所述理论最佳公共电压的公共电压，yright为x1对应的闪烁值，a1、b1为系数，c1是常数项。
  3. 根据权利要求1所述的显示面板的实际最佳公共电压的确定方法，其中，所述第一Vcom-Flicker曲线为：
    y right＝k 1x 1+b 2
    其中，x1为大于所述理论最佳公共电压的公共电压，yright为x1对应的闪烁值，k1为系数，b2为常数项。
  4. 根据权利要求2所述的显示面板的实际最佳公共电压的确定方法，其中，所述第二Vcom-Flicker曲线为：
    y left＝a 2(x 2-b 3) 2+c 2
    其中，x2为小于所述理论最佳公共电压的公共电压，yleft为x2对应的闪烁值，a2、 b3为系数，c2为常数项。
  5. 根据权利要求3所述的显示面板的实际最佳公共电压的确定方法，其中，所述第二Vcom-Flicker曲线为：
    y left＝a 2(x 2-b 3) 2+c 2
    其中，x2为小于所述理论最佳公共电压的公共电压，yleft为x2对应的闪烁值，a2、b3为系数，c2为常数项。
  6. 根据权利要求2所述的显示面板的实际最佳公共电压的确定方法，其中，所述第二Vcom-Flicker曲线为：
    y left＝k 2x 2+b 4
    其中，x2为小于所述理论最佳公共电压的公共电压，yleft为x2对应的闪烁值，k2、b4为参数。
  7. 根据权利要求3所述的显示面板的实际最佳公共电压的确定方法，其中，所述第二Vcom-Flicker曲线为：
    y left＝k 2x 2+b 4
    其中，x2为小于所述理论最佳公共电压的公共电压，yleft为x2对应的闪烁值，k2、b4为参数。
  8. 根据权利要求1所述的显示面板的实际最佳公共电压的确定方法，其中，所述理论最佳公共电压与用于拟合曲线的所述第二公共电压之间的差值不小于1V。
  9. 一种显示面板的实际最佳公共电压的确定装置，显示面板包括公共电极以及与所述公共电极相对设置的多个像素电极，所述公共电极上施加公共电压，各所述像素电极上施加与灰阶值对应的正极性灰阶电压和负极性灰阶电压，实际最佳公共电压的确定装置包括：
    拟合电压数据获取电路，用于获取用于拟合曲线的第一公共电压和第二公共电压，其中，所述第一公共电压大于理论最佳公共电压，所述第二公共电压小于所述理论最佳公共电压，所述理论最佳公共电压为所述正极性灰阶电压和所述负极性灰阶电压的平均电压；
    闪烁值获取电路，用于获取所述第一公共电压对应的第一闪烁值和所述第二公共电压对应的第二闪烁值；
    公共电压和闪烁值关系确定电路，用于根据所述第一公共电压和所述第一闪烁值获得第一Vcom-Flicker曲线，根据所述第二公共电压和所述第二闪烁值获得第二Vcom-Flicker曲线；
    实际最佳公共电压确定电路，用于确定所述第一Vcom-Flicker曲线和所述第二Vcom-Flicker曲线的交点处的公共电压，所述交点处的公共电压为实际最佳公共电压。
  10. 根据权利要求9所述的显示面板的实际最佳公共电压的确定装置，其中，所述第一Vcom-Flicker曲线为：
    y right＝a 1(x 1-b 1) 2+c 1
    其中，x1为所述大于所述理论最佳公共电压的公共电压，yright为x1对应的闪烁值，a1、b1为系数，c1是常数项。
  11. 根据权利要求9所述的显示面板的实际最佳公共电压的确定装置，其中，所述第一Vcom-Flicker曲线为：
    y right＝k 1x 1+b 2
    其中，x1为大于所述理论最佳公共电压的公共电压，yright为x1对应的闪烁值，k1为系数，b2为常数项。
  12. 根据权利要求10所述的显示面板的实际最佳公共电压的确定方法，其中，所述第二Vcom-Flicker曲线为：
    y left＝a 2(x 2-b 3) 2+c 2
    其中，x2为小于所述理论最佳公共电压的公共电压，yleft为x2对应的闪烁值，a2、b3为系数，c2为常数项。
  13. 根据权利要求11所述的显示面板的实际最佳公共电压的确定方法，其中，所述第二Vcom-Flicker曲线为：
    y left＝a 2(x 2-b 3) 2+c 2
    其中，x2为小于所述理论最佳公共电压的公共电压，yleft为x2对应的闪烁值，a2、b3为系数，c2为常数项。
  14. 根据权利要求10所述的显示面板的实际最佳公共电压的确定方法，其中，所述第二Vcom-Flicker曲线为：
    y left＝k 2x 2+b 4
    其中，x2为小于所述理论最佳公共电压的公共电压，yleft为x2对应的闪烁值，k2、b4为参数。
  15. 根据权利要求11所述的显示面板的实际最佳公共电压的确定方法，其中，所述第二Vcom-Flicker曲线为：
    y left＝k 2x 2+b 4
    其中，x2为小于所述理论最佳公共电压的公共电压，yleft为x2对应的闪烁值，k2、b4为参数。
  16. 一种显示面板的实际最佳公共电压的确定系统，包括：公共电压测量仪器、色彩分析仪和处理器，所述公共电压测量仪器用于测量待测显示面板的公共电压并发送至所述处理器，所述色彩分析仪用于测量所述公共电压对应的闪烁值；显示面板包括公共电极以及与所述公共电极相对设置的多个像素电极，所述公共电极上施加公共电压，各所述像素电极上施加与灰阶值对应的正极性灰阶电压和负极性灰阶电压；
    所述处理器分别与所述电压测量仪器和所述色彩分析仪连接，所述处理器用于执行步骤：
    获取用于拟合曲线的第一公共电压和第二公共电压，其中，所述第一公共电压不小于理论最佳公共电压，所述第二公共电压小于所述理论最佳公共电压，所述理论最佳公共电压为所述正极性灰阶电压和所述负极性灰阶电压的平均电压；
    获取所述第一公共电压对应的第一闪烁值和所述第二公共电压对应的第二闪烁值；
    根据所述第一公共电压和所述第一闪烁值获得第一Vcom-Flicker曲线，根据所述第二公共电压和所述第二闪烁值获得第二Vcom-Flicker曲线；
    确定所述第一Vcom-Flicker曲线和所述第二Vcom-Flicker曲线的交点处的公共电压，所述交点处的公共电压为实际最佳公共电压。
  17. 根据权利要求16所述的系统，其中，所述第一Vcom-Flicker曲线为：
    y right＝a 1(x 1-b 1) 2+c 1
    其中，x1为所述大于所述理论最佳公共电压的公共电压，yright为x1对应的闪烁值，a1、b1为系数，c1是常数项。
  18. 根据权利要求16所述的显示面板的实际最佳公共电压的确定方法，其中，所述第一Vcom-Flicker曲线为：
    y right＝k 1x 1+b 2
    其中，x1为大于所述理论最佳公共电压的公共电压，yright为x1对应的闪烁值，k1为系数，b2为常数项。
  19. 根据权利要求17所述的显示面板的实际最佳公共电压的确定方法，其中，所述第二Vcom-Flicker曲线为：
    y left＝a 2(x 2-b 3) 2+c 2
    其中，x2为小于所述理论最佳公共电压的公共电压，yleft为x2对应的闪烁值，a2、b3为系数，c2为常数项。
  20. 根据权利要求18所述的显示面板的实际最佳公共电压的确定方法，其中，所述第二Vcom-Flicker曲线为：
    y left＝k 2x 2+b 4
    其中，x2为小于所述理论最佳公共电压的公共电压，yleft为x2对应的闪烁值，k2、b4为参数。
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